Steamed Persimmon Pudding

Name: Steamed Persimmon Pudding
Ingredients: Nonstick cooking spray; 1 1/2 cups (7 1/2 oz./235 g) all-purpose flour; 1 1/2 tsp. baking powder; 1/4 tsp. salt; 1/4 tsp. freshly grated nutmeg; 1/2 tsp. ground ginger; 1/4 tsp. ground cinnamon; 1/2 cup (4 oz./125 g) unsalted butter, at room temperature; 1 1/2 cups (12 oz./375 g) sugar; 2 eggs; 1 to 2 Hachiya persimmons, peeled and mashed to make 3/4 cup (6 oz./185 g) puree (see note above); 2 to 3 Tbs. apricot jam; Sweetened whipped cream for serving