A recipe for Norwegian Apple Pie is given below. Ingredients: One egg, cup sugar, one tsp vanilla extract, one tsp baking powder, cup all-purpose flour, cup chopped walnuts, one cup diced apples

Directions: Beat egg, sugar, vanilla extract, and baking powder together until smooth. Beat in the flour until smooth and well blended. Stir in apples and walnuts. Put into a lightly greased nine inch pie pan. Bake for 30 minutes at 350 degrees. Pie will puff as it cooks and then collapses as it cools.

For each ingredient, identify as either a pure substance or a mixture and identify physical and/or chemical properties.