Black Walnut Spice Cake Recipe

• 1/2 c. (1 stick) unsalted butter (room temperature)
• 1 1/2 c. sugar
• 2 c. unbleached white flour
• 1 tsp baking pwdr, preferably Rumford's
• 1/2 tsp cinnamon
• 1/2 tsp grnd cloves
• 1/2 tsp grnd nutmeg
• 1/2 tsp salt
• 3/4 c. water
• 1 c. black walnuts
• 4 x egg whites (room temperature)

Directions