How far in advance can I make these praline truffles, and what’s the best way to store them so they stay fresh?
Prepare the truffles up to 7–10 days ahead; once the cocoa coating has set, layer them in an airtight container between sheets of parchment and keep them in the refrigerator (4 °C), sealed to protect them from moisture and odor. If you need a longer lead-time, freeze the truffles in a well-sealed box for up to 2 months, then thaw overnight in the fridge and let them sit at room temperature for 10 minutes before serving.
Can I substitute the almond-hazelnut praline with another ingredient, and how will that affect the truffles’ flavor and texture?
Yes—feel free to swap the almond–hazelnut praline for an equal weight of any crisp, caramel-like mix such as pistachio or pecan praline, feuilletine flakes, or even crushed honeycomb. The truffles will keep their melt-in-the-mouth ganache texture, but the nut or candy you choose will shift the aroma and introduce a slightly different crunch (e.g., pistachio adds a greener, buttery note, while honeycomb gives lighter, toffee-like shards). Avoid soft nut butters or untoasted nuts, as they dissolve into the ganache and leave the center dense rather than pleasantly speckled.
Can I replace the dark chocolate with milk or white chocolate, and do I need to adjust the proportions?
Yes—swap in milk or white chocolate, but because both contain more sugar and less cocoa-solids/cocoa-butter, they set softer. Use roughly 230–240 g milk chocolate (or 250–260 g white) and cut the butter to about 40 g; this keeps the ganache firm enough to roll while preventing it from tasting overly sweet or greasy.