M'em'er's Banana Bread

Ingredients

• 1/2 cup Crisco shortening
• 1 cup sugar
• 1 cup (very ripe) mashed bananas
• 2 large eggs
• 1 Tbsp lemon juice
• 2 cups flour
• 3 Tbsp baking powder
• 1/2 tsp salt
• 1/2 cup walnuts, optional