– 8 peaches, peeled, pitted, and sliced – 2 Tbsp lemon juice, (about 1/2 lemon) – 1 Tbsp cornstarch TOPPING – 1 cup almond meal – 1/4 cup rolled oats, regular or quick cooking is fine – 1/2 cup brown sugar – 1/2 tsp ground ginger – 1/4 tsp cinnamon – 1/4 tsp ground cardamom – 1/4 tsp ground cloves – 1/4 tsp ground allspice – 1/4 tsp freshly ground nutmeg – 6 Tbsp cold unsalted butter, cut in small piece