Grandma's Brownies

(Jessica, this isn't the same recipe I used when you guys were here. It's much better!)

1 1/2 C sifted flour
2 C sugar
10 Tbsp. cocoa
1 tsp salt
1 C. crisco
4 eggs
2 tsp vanilla
1 C. nuts (optional)

Mix ingredients together and bake at 350 degrees for 30 min in 9x13 pan.