Old-Fashioned Dutch Apple Pie - Skinny Daily Recipes

Ingredients

• 1 deep dish pie crust, baked (to save time, use frozen pie crust)
• 1/2 c walnuts, chopped
• 1/2 c plain flour
• 1/2 c light brown sugar, packed
• 4 Tbsp melted margarine
• 1 egg, white only
• 1/4 c sugar
• 2 Tbsp corn starch
• 1 tsp cinnamon
• 3 lb gala apples
• 1 Tbsp lemon juice