Heat oven at 350 degrees. Lightly spray a 9 X 13 baking pan with nonstick spray and set aside.
Using a hand mixer, cream butter, brown sugar, eggs, and vanilla together until fluffy.
Add remaining ingredients and mix thoroughly.
Cream butter, brown sugar, eggs, and vanilla. Add all other ingredients together and mix thoroughly. Bake at 350 for 20-30 minutes.
Add your favorite nuts or seeds into the recipe before baking if you prefer.
You can also prepare this recipe in advance! Prepare according to directions, cover tightly with plastic wrap and refrigerate overnight.