Roux

Ingredients

• 2 perfect, ripe peaches (or nectarines)
• 2 teaspoons lemon juice
• 2 Tablespoons sugar
• 2 large basil leaves
• Pinch of fine sea salt
• 160 g all-purpose flour, plus extra for dusting
• 30 g sugar
• 2 teaspoons baking powder
• 1/2 teaspoon fine sea salt
• 160 g + 1 Tablespoon cold heavy cream, divided
• 1 teaspoon vanilla extract
• 2 teaspoons coarse turbinado sugar
• 115 g (1/2 cup) heavy cream, cold
• 1 tablespoon sugar
• 40 g (2 heaping tablespoons) sour cream, cold