In a large mixing bowl, combine flour, sugar, yeast, and salt. Stir it like you're stirring up some joy.
Add warm milk and eggs. Mix until dough comes together—sticky is okay.
Wrap it up and chill the dough for at least 30 minutes. Let it rest; it’s earned it.
Roll dough into a rectangle, place butter slices in the center, fold, and roll again. Do this 3 times with chilling in between.
Cut out donut shapes using a cutter. If you don’t have one, a glass and a shot glass work fine. Don’t stress it.
Let shaped dough rise for 1 hour in a warm spot (like your oven with the light on).
Heat oil to 350°F. Fry each cronut 2–3 minutes per side until golden and puffy.
Let them drain on paper towels, then dust in sugar. Optional: Fill with pastry cream or jam. You’ve already come this far—why not?