A spiced, no-bake tiramisu that swaps ladyfingers for caramelized Biscoff cookies and folds Biscoff cookie butter into a light mascarpone filling. Make it in a single baking dish or layer it in individual glasses for pretty, portable servings.
Chill a mixing bowl and beaters briefly for easier whipping.
Whip the heavy cream with the sugar until it reaches soft peaks.
In a separate bowl, stir the mascarpone with the Biscoff spread and vanilla until smooth and evenly blended.
Fold the whipped cream gently into the mascarpone mixture until light and uniform — take care not to overwork it.
Tip: Start with the lower amount of cookie butter and taste; you can fold in more if you want a more intense Biscoff profile.
Pour the cooled coffee into a shallow dish. Quickly dip each Biscoff cookie for 1–3 seconds (brief dunking prevents them from turning to mush). Line the bottom of the pan with a single layer of soaked cookies.
Spread about half the mascarpone-cookie-butter cream evenly over the cookie base. Smooth the surface with a spatula.
Repeat: dip a second round of cookies, arrange them over the cream, then top with the remaining mascarpone mixture.
Finish with a dusting of cocoa or a sprinkle of crushed Biscoff. Cover and refrigerate at least 6 hours, preferably overnight, so the layers soften and flavors marry.
Serving note: Garnish with whole Biscoff cookies set at an angle for a decorative finish.
Dip cookies briefly and break them as needed to fit small glasses or 7-oz jars.
Pipe or spoon a layer of cream into each jar, add a layer of dipped cookie pieces, then repeat so each cup has two or three thin layers.
Dust with cocoa and chill for 4–6 hours. Finish with a slotted Biscoff cookie before serving.