Best Bake Grainy Peanut Butter & Jelly Delight

Ingredients

• 1 ½ cups (190 g) whole wheat flour
• ½ cup (100 g) brown sugar, packed
• ½ teaspoon baking powder
• ¼ teaspoon salt
• ½ cup (120 ml) unsalted butter, melted
• 1 cup (240 g) grainy peanut butter
• 1 cup (240 g) jelly or jam of your choice (strawberry, raspberry, or grape are popular)
• 1 tablespoon lemon juice (optional, for brightness)
• ½ cup (50 g) chopped nuts (e.g., peanuts, walnuts, or almonds) - optional