Preheat the oven to 350F/180F. Line a 8x8 inch (20x20 cm) baking tin with parchment paper.
Melt the butter in a small saucepan. Remove from the heat and add brown sugar, honey, and baking soda (it will bubble up slightly). Keep stirring until they are fully dissolved and set aside.
1/2 cup butter, 1/2 cup brown sugar, 3 tbsp honey, 1/2 tsp baking soda
In a large mixing bowl, combine all dry ingredients.
1 1/2 cups rolled oats, 1/2 cup all-purpose flour, 1/8 tsp sea salt, 1/4 cup desiccated coconut, 1/4 cup raisins, 1/4 cup pumpkin seeds, 1/4 cup sunflower seeds, 1/4 cup sesame seeds
Add the wet to the dry ingredients and thoroughly combine everything making sure not to overmix the batter.
Add the mixture to the prepared baking tin and spread it out evenly with the back of a spoon or spatula making sure all corners are well covered.
Bake granola bars for 20 minutes until golden brown.
Let the energy bars cool down on a cooling rack for 15 minutes before slicing them into 8 bars or 16 bites. Once fully cooled, store them in an airtight container at room temperature for up 5 days. Perfect for meal prep!
Notes
Storage: Homemade granola bars store well in an airtight container at room temperature or in the fridge for up to 5 days. You can also store them in a freezer-proof container in the freezer for up to 3 months. I suggest cutting it into squares or bars prior so you can thaw individual servings by defrosting them for 4 hours at room temperature.