Step 1

Preheat oven to 350°F.

Step 2

Cream the butter until fluffy. Add the brown sugar and vanilla. Then, mix well. Add eggs one at a time waiting for previous added egg to be fully incorporated after mixed. Then, mix in salt. Sift together the flour and baking soda and add to the above ingredients. Stop mixing once the flour is fully incorporated in mixture.

Step 3

Spread the mixture on a 13-inch x 9-inch parchment paper lined or well buttered pan.

Step 4

Bake in oven for 35 to 40 minutes or until the center feels firm when gently pressed. Let cool before removing from pan and cutting.