Kilner® - Iconic Glass Jars, Bottles & Equipment | Kilner®

How to Make Overnight Oats in a Kilner® Food on the Go Jar

How to Make Overnight Oats in a Kilner® Food on the Go Jar

By Kilner® - Iconic Glass Jars, Bottles & Equipment | Kilner® | Published: 2026-08-05

Category: How-to Guides

Learn step-by-step how to prepare delicious overnight oats in a Kilner® jar, with tips for layering, flavor variations, and meal prep.

Overnight oats have become a breakfast staple for busy mornings, offering a healthy, no-cook meal that you can prepare the night before. But the key to a perfect grab-and-go breakfast lies in the container you use. A Kilner® jar not only looks stylish but is also practical, with an airtight seal that keeps your oats fresh and prevents leaks. In this guide, we'll show you how to make overnight oats in a Kilner® jar, from the basic recipe to creative variations.

Whether you're a meal prep enthusiast or simply want a quick, nutritious breakfast, using a Kilner® jar elevates the experience. With a range of sizes and designs, you can find the perfect jar for your portion needs. Let's dive into the process and discover why the Kilner® Food on the Go Jar is a game-changer for your morning routine.

Why Use a Kilner® Jar for Overnight Oats?

Kilner® jars are renowned for their quality and durability. The airtight seal ensures your overnight oats stay fresh and free from any fridge odors. The glass material is non-porous, so it won't absorb flavors or stains, making it easy to clean and reuse. Plus, the wide mouth of many Kilner® jars makes it easy to add ingredients and stir, while the secure lid prevents any spills when you're on the move.

The Kilner® Food on the Go Jar is specifically designed for portable meals. Its compact size and robust construction make it ideal for carrying in a bag or lunchbox. With a capacity that's perfect for a single serving, you can prepare your oats the night before and grab it on your way out. The jar's design also allows for easy layering, so you can create visually appealing and delicious breakfasts.

  • Airtight seal keeps oats fresh and prevents leaks.
  • Glass material is non-porous and easy to clean.
  • Wide mouth allows for easy adding and stirring.
  • Portable design perfect for on-the-go mornings.

Basic Overnight Oats Recipe in a Kilner® Jar

Creating the perfect overnight oats is simple. Start with a 1:1 ratio of rolled oats to liquid. For a creamier texture, you can use milk (dairy or plant-based) or a combination of milk and yogurt. Add a sweetener like honey or maple syrup, and a pinch of salt to enhance the flavors. Mix in your favorite toppings such as berries, nuts, or seeds, then seal the jar and refrigerate overnight.

For a single serving, use about 1/2 cup of rolled oats and 1/2 cup of liquid. Adjust the consistency by adding more liquid if you prefer thinner oats or less for a thicker texture. The beauty of overnight oats is their versatility – you can customize the recipe to suit your taste and dietary needs.

  • Use rolled oats for the best texture – quick oats can become mushy.
  • Add chia seeds for extra thickness and a nutritional boost.
  • Sweeten with natural options like maple syrup or mashed banana.

Step-by-Step Instructions

1. Start by choosing your Kilner® jar. For a standard serving, the Kilner® Food on the Go Jar is perfect. If you prefer a larger portion, you might opt for a bigger jar like the Kilner® 0.25 Litre Preserve Jar or the Fresh Storage 0.75 Litre, depending on your needs.

Fresh Storage 0.75 Litre
Fresh Storage 0.75 Litre

2. Add your dry ingredients: rolled oats, chia seeds, and any spices like cinnamon. Then pour in your liquid and sweetener. Stir well to ensure everything is combined.

3. Fold in your favorite toppings – fresh fruit, nuts, or a dollop of yogurt. Seal the jar with its lid and give it a gentle shake to distribute the ingredients evenly.

4. Place the jar in the refrigerator and let it sit overnight, or for at least 4-6 hours. The oats will soften and absorb the liquid, creating a creamy, pudding-like texture.

5. In the morning, give the oats a stir. If they're too thick, add a splash of milk. You can enjoy them straight from the jar or top with additional fresh fruit and granola for extra crunch.

  • Prepare multiple jars at once for a week's worth of breakfasts.
  • Store jars upright to prevent any leakage.
  • Experiment with different flavor combinations to keep things interesting.

Creative Flavor Variations

One of the best things about overnight oats is how easily you can vary the flavors. For a tropical twist, add coconut milk and pineapple chunks. For a chocolate lover's dream, mix in cocoa powder and top with dark chocolate shavings. You can also incorporate nut butters, jams, or fresh fruit purees to create endless possibilities.

If you're a fan of savory breakfasts, you can even make savory overnight oats with ingredients like sautéed vegetables, cheese, and herbs. The Kilner® jar is versatile enough to hold any creation, and the airtight seal ensures your savory oats stay fresh and flavorful.

  • Try a peanut butter and banana combination for a protein-packed start.
  • Add a layer of yogurt and fruit for a parfait-style breakfast.
  • Use leftover coconut milk or almond milk to add richness.

Meal Prep Tips with Kilner® Jars

Overnight oats are perfect for meal prep. You can prepare several jars at once and store them in the fridge for up to 4-5 days. This saves time and ensures you have a healthy breakfast ready each morning. The Kilner® jar's airtight seal keeps the oats fresh and prevents them from absorbing other food odors in the fridge.

When meal prepping, consider using jars with a wider mouth, like the Kilner® Clip Top Round Drinks Dispenser 5 Litre (if you're making a big batch) or individual jars like the Kilner® Set of 3 Facetted Clip Top Jars 0.95 Litre for portion control. Labeling your jars with the date and flavor can help you keep track of your creations.

  • Invest in a set of Kilner® jars of various sizes for different portion needs.
  • Use a funnel to avoid spills when filling jars.
  • Store jars in the fridge door to save shelf space.

Cleaning and Caring for Your Kilner® Jar

After enjoying your overnight oats, it's important to clean your Kilner® jar properly to ensure its longevity. The glass jars are dishwasher safe, but hand washing with warm soapy water is also effective. The rubber seals and clips should be removed and washed separately to prevent wear and tear.

If you notice any stubborn stains or odors, you can soak the jar in a solution of baking soda and water. For a fresh scent, you can also rinse with white vinegar. Always dry the jar thoroughly before storing it to prevent any moisture buildup.

  • Avoid using abrasive scrubbers that can scratch the glass.
  • Check the rubber seals regularly and replace them if they become cracked or worn.
  • Store jars with the lids off to allow air circulation and prevent odors.

Making overnight oats in a Kilner® jar is a simple, healthy, and convenient way to start your day. With the right jar and a few basic ingredients, you can create a delicious breakfast that's ready when you are. Whether you're a seasoned meal prepper or new to the overnight oats trend, Kilner® offers a range of jars to suit your needs. So why not give it a try? Your mornings will thank you.

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