Step 1

Preheat the oven to 350°F and line a baking sheet with parchment paper.

Step 2

In a medium pot over medium heat, melt together the nut butter and honey until smooth. Remove from heat and use a wooden spoon to stir in the cinnamon, salt and vanilla. Once the mixture has cooled a little, quickly beat in the egg. Add the muesli, flour and baking powder to the pot and stir together until combined.

Step 3

Take about 2 heaped tablespoons of dough, roll into a ball and flatten slightly onto the baking sheet. Repeat with the rest of the dough, spacing the flattened balls about 1 inch apart. (They barely spread when baked.)

Step 4

Bake until golden brown underneath, 6 to 8 minutes. Transfer the cookies to a wire rack to cool completely, then store in an airtight container for up to 5 days.