Make the Dough

1. Whisk your flour & salt together in a medium bowl. Add your cubed butter, toss in the flour to coat, and squish each piece between two fingers to create flat little “shingles” of butter. Squish and crumble the butter in the flour mixture until you have both large flat pieces and pea-sized chunks of butter.
2. Add your egg yolk & lightly mix in with a fork. Add 2 tablespoons of ice water and toss together with your hands, pressing the dough together at times (don’t knead, just press/squeeze). Eventually it should all come together, but may be somewhat crumbly—this is normal (add a third tablespoon of ice water if the dough seems way too dry). Shape into a small disc shape.
3. Wrap the disc of dough tightly in plastic wrap (lay on the counter once wrapped, press out any air pockets) and let rest in the fridge for 2 hours or up to overnight (2 hours minimum).

Make the Almond Cream

1. While the dough is in the fridge, make the almond cream! In a small or medium-sized bowl, cream together your room temp. butter and granulated sugar with a wooden spoon until fully combined (may be tricky at first, but gradually starts to combine).
2. Then, sift your almond flour into the bowl and mix together (still using the wooden spoon). Finally, add your egg and vanilla paste, and then whisk together until full incorporated and you’re left with a smooth consistency. Store in a small bowl covered tightly with a lid or plastic wrap in the fridge until ready to use.

Assemble & Bake

1. Once your dough has chilled, take it out the fridge and let rest for about 5-10 minutes on the counter until it’s able to be handled (if you roll it while it’s too cold, it’ll break as you go). Lightly flour your surface and gently roll the dough out into a 10-12 inch circle, ~1./4 inch thick. Be sure to pick up the dough and reapply small bits of flour as needed so it doesn’t stick to the surface.
2. Place your dough in the fridge on a cookie sheet lined with parchment paper for 10 minutes so the butter stays cold. Preheat the oven to 400°F (200°C).
3. Take your dough back out of the fridge and spread your almond cream in an even layer over the top, leaving about a 2 inch border around the side. Fan out your thinly sliced apples overtop the almond cream, starting from the outside and working your way in.
4. Fold the border of your galette dough over the top of the outermost apples, working clockwise & letting the dough overlap a few times. Lightly whisk an egg and brush it around the dough you just folded over (you won’t use it all, just enough to generously cover the crust). Sprinkle the entire galette, apples and crust, with granulated sugar.
5. Bake at 400°F on the middle rack for 45-50 minutes or until desired browning on the crust. Take out of the oven and while it’s still warm, drizzle the galette with honey and top with pistachios. Best enjoyed warm and same-day.