Linnea's Chocolate Chip Cookies, modified from Allrecipes
Why I Love This Recipe
I have used this recipe for cookies for as long as I can remember because it comes out perfect every time! CHEMISTRY INFORMATION: In addition to the pure substances and mixtures listed below, the batter and the final cookies are heterogeneous mixtures. Softening(I melt it) the butter and mixing the ingredients are 2 physical changes that happen.Clues that chemical changes are occurring is that the batter puffs up and there is a new smell as the cookies are baking.
Submitted by: "Linnea B."
Ingredients You'll Need
1 cup softened butter (homogeneous mixture)
1 cup white sugar(pure substance)(C12H22O11)
1 cup packed brown sugar(homogeneous mixture)
2 eggs(heterogeneous mixture)
2 teaspoons vanilla extract(homogeneous mixture)
3 cups all-purpose flour(homogeneous mixture)
1 teaspoon baking soda (pure substance)(NaHCO3)
2 teaspoons hot water(pure substance)(H2O)
1/2 teaspoon salt(pure substance)(NaCl)
2 cups semisweet chocolate chips(homogeneous mixture)
1 cup chopped walnuts(heterogeneous mixture)
Preheat oven to 350 degrees F (175 degrees C).
Cream together the butter, white sugar, and brown sugar until smooth.
Beat in the eggs one at a time, then stir in the vanilla.
Dissolve baking soda in hot water. Add to batter along with salt.
Stir in flour, chocolate chips, and nuts.
Drop by large spoonfuls onto ungreased pans.
Bake for about 10 minutes in the preheated oven, or until the edges are nicely browned.