Preheat your oven to 325°F (163°C). I always let my daughter help line the springform pan with foil, it makes her feel so official and keeps water out during baking.
Mix the crumbs, [sugar], melted [butter], and [salt]. Press firmly into the pan. My little helper loves packing it down, it’s her favorite job.
Bake for 10 minutes, then cool completely.
Beat [cream cheese] and [sugar] until smooth. Add [sour cream] and [vanilla]. I always remind her, no overmixing or the cake gets grumpy!
Mix in [Baileys] and optional [espresso powder]. Add [eggs] one at a time on low speed.
Place in water bath and bake 60–70 minutes until gently set.
Cool in oven 1 hour, then refrigerate 6 hours or overnight.
Heat cream, pour over [chocolate], stir in [butter] and [Baileys].
Pour ganache over chilled cake. Garnish with whipped cream, chocolate shavings, and a Baileys drizzle.