Step 1

Preheat oven to 350 degrees F.

Step 2

Line an 8x8” square baking pan with parchment paper and lightly grease. Set aside.

Step 3

In a small bowl, mix together flour, baking powder, and salt. Set aside.

Step 4

In a large, microwave safe bowl (glass) melt butter.

Step 5

Add brown sugar and granulated sugar and stir until combined.

Step 6

Add eggs and vanilla to the butter/sugar mixture and stir until mixture is smooth.

Step 7

Add dry ingredients and stir until all the ingredients are just combined, be careful not to over-mix the batter.

Step 8

Fold in preferred mix-ins until evenly distributed.

Step 9

Spread the batter evenly in the prepared baking dish.

Step 10

Bake for 25-30 minutes, or until the top is golden-brown and shiny (If you like fudgier blondies bake for 25 minutes, for cakier blondies bake for 30 I recommend 25).

Step 11

Place baking pan on a wire cooling rack and let the bars cool in the pan for at least 30 minutes (preferably longer, they hold up better as they cool).

Step 12

Use the parchment paper to lift the cookie bars out of the pan, then cut into squares and serve.