Prepare the Frappe BaseIn a blender, combine the milk, ice, toffee sauce, cooled brewed coffee (or espresso), brown sugar, and vanilla extract.Blend on high speed until the mixture is smooth, frothy, and well-combined, ensuring the ice is fully crushed.
Serve the FrappePour the frappe into a tall glass, leaving some room at the top for whipped cream.
Top and GarnishTop the frappe with a generous swirl of whipped cream.Drizzle extra toffee sauce or caramel sauce over the whipped cream for an extra indulgent touch.For added texture, sprinkle crumbled toffee pieces or caramel bits on top of the whipped cream for garnish.
Enjoy!Serve immediately with a straw or spoon, and enjoy your sweet, creamy, and decadent Sticky Toffee Frappe.