Allulose Benefits: This rare sugar creates beautiful caramelization in the topping without blood sugar spikes. Brown allulose adds molasses-like depth while maintaining low glycemic impact. Pan Preparation: Use 6-inch x 3-inch round pan with 3-inch depth to prevent overflow. Grease sides well and line bottom with parchment circle for easy release. Upside-Down Technique: Pour topping mixture directly into bottom of pan first, then carefully spread cake batter on top. The magic happens during baking as topping caramelizes. Doneness Test: Start checking at 50 minutes with toothpick inserted in center. Toothpick should come out with just a few moist crumbs. Top should be golden and spring back when touched. Flipping Tips: Let cake cool in pan 10 minutes before inverting. Run knife around edges, place serving plate on top, and flip confidently in one smooth motion. Almond Flour Notes: Blanched almond flour works best for tender crumb. Avoid almond meal which is coarser and creates denser texture. Storage Guidelines: Store covered at room temperature 2 days or refrigerate up to 5 days. Cake stays moist thanks to applesauce. Freezing Instructions: Cool completely, wrap tightly in plastic wrap then foil, freeze up to 3 months. Thaw at room temperature 2-3 hours before serving. Serving Suggestions: Serve warm or room temperature with whipped cream, vanilla ice cream, or kefir cream. Perfect with coffee or spiced tea.