Step 1

Preheat oven to 350°F. Grease a 9″x 13″ x 2" baking pan.

Step 2

Using an electric mixer on medium speed, beat the butter, brown sugar, and sugar until fluffy. Add the baking soda, cinnamon, and salt, and mix until combined. Add the eggs and vanilla, and mix just until combined.

Step 3

Add the flour, mixing on low speed just until combined.

Step 4

Transfer the dough to the prepared pan, spreading evenly. Bake 30 to 35 minutes, or until set and lightly golden.

Step 5

Place the pan on a wire rack to cool. Sprinkle the warm bars with cinnamon-sugar. Cool completely before cutting into bars.