Homemade Speculoos Ice Cream Recipe

Ingredients (9)

• 5 1/2 ounces Toasted Sugar (about 3/4 cup; 145g), see note
• 4 ounces egg yolk (about 1/2 cup; 110g), from about 8 large eggs
• 3/4 teaspoon (3g) Diamond Crystal kosher salt, plus more as needed; for table salt, use half as much by volume or use the same weight
• 1/8 teaspoon baking soda
• 6 3/4 ounces Biscoff crumbs (about 1 1/2 cups; 190g), from store-bought or homemade cookies
• 9 ounces heavy cream (about 1 cup plus 2 tablespoons; 255g)
• 11 ounces whole milk (about 1 1/4 cups plus 2 tablespoons; 310g)
• 1/4 ounce bourbon or rye whiskey, or whatever sounds tasty (about 1/2 tablespoon; 7g), optional
• 1 teaspoon (5ml) vanilla extract