Step 1

Preheat oven to 350 degrees F and grease a 9x13 baking dish.

Step 2

In a large microwave safe bowl, heat butter in 15 second increments until fully melted. Add both sugars and vanilla and beat until smooth, then beat in eggs one at a time.

Step 3

In a small bowl, sift together the flour, baking powder, and salt. Add the dry ingredients to the wet and mix until just combined. Fold in the pecans.

Step 4

Transfer batter to the prepared baking dish and bake for 30-35 minutes or until cooked through the center.

Step 5

Allow chewies to cool before cutting.