It's not "great for hot chocolate". These are mini shapes so they should be labeled "mini". Also, the hot chocolate bomb is at least twice the size of the mold, three times the size. HOWEVER, these are good silicone molds and work for other heart-shaped treats that aren't hot chocolate bombs.
AmazonBasics Silicone Baking Mat Sheet
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PME Scriber Needle Modelling Tool, For Cake Decorating, 5.7-Inch
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300PCS Pre-Cut Unbleached Parchment Paper Sheets - Perfect For Baking, Grilling, Air Fryer & Steaming!
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2-Pack European Grade Silicone Bunte Cake Pan Set - Non Stick Bakeware Fluted Tube Mold For Jello, Gelatin & Cakes | 9 Inch Baking Pans | Aokinle | BPA Free
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