1 c. butter
1/2 c. shortening
1 1/3 c. brown sugar
4 eggs
1 tbsp. vanilla
1 tsp. lemon juice
3 c. flour
2 tsp. baking soda
1 1/2 tsp. salt
1 tsp. cinnamon
1/2 c. rolled oats
1 (12 oz.) bag semi-sweet chocolate chips
2 c. walnuts, chopped

In large bowl of an electric mixer, beat butter, shortening and sugars on high speed until fluffy. Add eggs, one at a time, beating well after each addition. Beat in vanilla and lemon juice. In another bowl, stir flour, baking soda, salt, cinnamon and oats. Gradually add to butter mixture, blending thoroughly. Stir in chips and walnuts. For soft cookies, bake in 325 degree oven for 17 to 19 minutes. For crisp cookies, bake in 350 degree oven for 16 to 18 minutes. Makes about 3 dozen.