How do I make Hotteok (Korean Sweet Pancakes)?
Here's a recipe for Hotteok (Korean Sweet Pancakes):

Ingredients:

• 1 cup warm water
• 1 packet active dry yeast
• 2 1/2 cups bread flour
• 4 tablespoons grapeseed oil, divided, plus more as needed
• 1 teaspoon kosher salt

Filling

• 1/4 cup walnuts, finely chopped
• 2 tablespoons maple syrup
• 3 tablespoons turbinado sugar, or brown sugar
• 1/2 teaspoon kosher salt
• 1/2 teaspoon vanilla extract

Instructions:

1. In the bowl of a stand mixer fitted with the dough hook, combine the warm water and yeast and let sit for 10 minutes, until foamy. Add the flour, 2 tablespoons grapeseed oil, and salt and mix on medium speed until the dough comes together in a ball, about 10 minutes. Cover the bowl with a kitchen towel or plastic wrap and let the dough rest at room temperature for 11/2 hours, or until doubled in size.
2. While the dough is rising, make the filling: In a small bowl, mix together the walnuts, maple syrup, turbinado sugar, salt, and vanilla.
3. Divide the dough into 8 portions. Roll each piece into a ball, then flatten it into a 4–5-inch-wide disc. Scoop a heaping teaspoon of filling onto the center of each disc, then pinch the dough up and over the filling to encase and roll into a ball again.
4. Heat 2 tablespoons of grapeseed oil in a medium nonstick or cast iron pan over medium-high  heat. Once the oil is shimmering, place a dough ball in the pan and immediately flatten with a hotteok press or spatula into a 4–5-inch-wide disc, about 1/4 inch thick. Continue to press down on the disc until the bottom is golden brown, about 2 minutes. Flip the hotteok and cook until the other side is golden brown, 2 minutes more. Repeat with the remaining hotteok, adding more oil to the pan as needed.
5. Serve hot.

Enjoy your Hotteok (Korean Sweet Pancakes)!