Zest the lemon into a medium bowl with the granulated sugar and use your fingers to rub them together until they’re well combined.
1 lemon zested, 100 g (1/2 cup) granulated sugar
Place the butter in a small pot over medium-low heat and cook for 5ish minutes until it's fully melted and sizzling, stir intermittently.
113 g (1/2 cup/1 stick/8 Tbsp) salted butter
Once the butter starts foaming, stir more frequently with a rubber spatula or wooden spoon, scraping the bottom of the bowl until you see it browning. Keep stirring until the butter browns to a dark amber color and then pour it over the sugar and lemon.
Whisk the butter with the sugar and lemon aggressively for 1-2 minutes to help the butter cool down.
Add the egg, yogurt and vanilla and whisk until the batter is completely smooth.
120 g (1/2 cup) Greek Yogurt, 1 large egg, 1 tsp vanilla extract
Add the flour and baking powder and use the rubber spatula to fold until there are no more streaks of flour left. It should be the texture of cookie dough.
150 g (1 1/4 cup) all-purpose flour, 5 g (1 1/2 tsp) baking powder
Use a small cookie scooper or a spoon to scoop the batter on top of the peaches. I like to keep small blobs and try to spread them out a little with the spoon so there's a thin layer over most of the peaches.
Bake for about 30 minutes. I baked it on convection (with the fan) on the middle shelf because peaches cook rather quickly and I wanted to make sure I got the topping nice and brown in a shorter time frame. Depending on how your oven circulates heat and how ripe your peaches are, it could take as little as 25 minutes or up to 35 minutes. You want the biscuits on top to be golden brown and there should be thick bubbles of the peach filling coming up around the sides.
If the top is browned but the filling doesn’t have slow thick bubbles yet, cover the top with foil for a little so it doesn’t burn. If it looks mostly done but you want the top more crispy/browned, turn the oven to broil for 1-2 minutes. KEEP AN EYE ON THIS THOUGH!! lol
Allow it to cool a little before serving so the filling can set and then top it with vanilla ice cream. Some caramel sauce never hurt anyone either.
vanilla ice cream for topping