Toll House Marble Squares Recipe
Instructions:1. Preheat oven to 375 F.
2. Mix butter, sugars and vanilla thoroughly.
3. Beat in egg.
4. Blend in flour, soda and salt and mix.
5. Spread in greased 13 x 9 x 2-inch pan, sprinkle with chocolate chips and nuts over the top, and place in oven for 1 minute.
6. Remove and run knife through dough to marbelize, return to oven and bake at 375 F for 12 to 14 minutes.