Prep Time 20 minutes mins
Cook Time 43 minutes mins
Total Time 1 hour hr 15 minutes mins
Don't skip the parchment: This delicate crumb sticks without it. Set eggs and sour cream out an hour ahead — cold dairy seizes brown butter. A springform pan makes release easy. For the glaze, let it drip naturally; intentional imperfection looks deliberate. Storage: Unglazed cake keeps at room temp 3 days, fridge 5 days, or freeze up to 2 months (wrap well, thaw overnight in fridge). Glaze day of serving. Gluten-free option: Swap flour for 1:1 GF baking blend with xanthan gum.