Combine water, butter, salt, and 1/4 teaspoon of cinnamon in a saucepot and bring to a boil, then reduce heat to low.⠀
Add in flour and stir and press down until fully incorporated, remove from heat and allow to sit for 5 minutes. ⠀
Add in eggs, one at a time, fully mixing to combine before adding the next. ⠀
Fill a large piping bag fitted with a star tip with the dough and pipe in large circles onto a parchment-lined baking sheet. (Pro-Tip: Make sure all the layers are touching, and pre-draw how big you want your churros on the parchment, it will be a good guide.)
Freeze for at least 4 hours⠀
Heat about 2 inches of vegetable or canola oil in a pot to 350 degrees.
Remove churros from the freezer and fry until golden, and let drain on a piece of paper towel. ⠀
Combine 1/2 cup of sugar, and 1/2 teaspoon of cinnamon and fully coat your warm churros in the cinnamon sugar. ⠀
Sandwich a scoop of ice cream between 2 churros and enjoy! ⠀