Delicious soft oat bars flavored with peanut butter and banana. Made with just six simple ingredients — perfect for batch-cooking a healthy breakfast.

If mornings are rushed, these Peanut Butter & Banana Breakfast Bars are ideal to prepare at the weekend and enjoy during busy weekdays. They’re simple to make, nutritious, and portable — great for breakfast on the go or a quick snack.
Made with just six basic ingredients and sweetened naturally with ripe banana, these bars are a healthier alternative to many store-bought muffins or breakfast bars. They’re soft, lightly spiced with cinnamon, and have a rich peanut butter flavor.

Each bar works out to roughly 175 calories when cut into nine squares (this value is for the bars alone and does not include any toppings). Serve them with extra peanut butter and banana slices, or enjoy with Greek yogurt and fresh berries for added protein and texture.
You can store the bars in the fridge for up to two days and reheat them briefly in the microwave. They also freeze well — freeze individual squares and defrost one at a time in the fridge overnight or at room temperature for a few hours. See the notes below for full storage guidance.

Peanut Butter Banana Breakfast Bars
- Author: Ciara Attwell
- Prep Time: 3 mins
- Cook Time: 30 mins
- Total Time: 33 minutes
- Yield: 9
- Category: Breakfast
- Method: Baked
- Cuisine: Healthy Breakfast
Description
Soft oat bars flavored with peanut butter and banana — made from six simple ingredients. They’re ideal for batch cooking, meal prep, and keeping breakfast quick, nutritious, and satisfying.
Ingredients
- 200g porridge oats
- ½ tsp ground cinnamon
- 1 tsp baking powder
- 2 ripe bananas, mashed
- 400ml semi-skimmed milk (or milk of choice)
- 75g 100% peanut butter (no added sugar)
Instructions
- Preheat the oven to 180°C fan (or 200°C conventional). Line a square baking dish or brownie tin with parchment paper.
- In a large bowl, combine the porridge oats, cinnamon and baking powder.
- In a jug or separate bowl, mix the mashed bananas with the milk and peanut butter until smooth.
- Pour the wet mixture into the dry ingredients and stir until fully combined.
- Transfer the mixture to the prepared dish and bake for 30–35 minutes, until golden on top and set in the center.
- Allow the tray to cool for a few minutes, lift the baked slab from the tin using the parchment, then cool a little longer before cutting into 9 squares.
Notes
Storage: Keep the bars in an airtight container in the fridge for up to 2 days. Reheat briefly in the microwave if you prefer them warm. For longer storage, freeze individual squares; defrost overnight in the fridge or at room temperature for a few hours.
Ingredient tip: Use a natural, 100% peanut butter without added sugar or oil for the best flavor and a healthier result.
Nutritional info: Any calorie or nutrition estimates are approximate. If you need exact nutritional values, calculate them based on the specific brands and quantities you use. The indicated calorie estimate applies to the bars alone and does not include optional toppings.
