For those who can't follow from the video (because it's a stupid fucking format for recipes). And including metric conversions.
Preheat oven to 375F/190C. Line/grease 6 muffin tins
2 tsp espresso powder (will vary by brand but probably about 6g)
1/2 c/90g chocolate chunks (will vary by brand and I'm assuming 55-65% coco)
1/2 c/115g unsalted butter (the video says 1 stick butter which is a stupid fucking measurement that doesn't apply to 95% of the planet. 1 stick is 1/2 cup or 1/4 lb/112g)
Melt and stir. Remove from heat and cool slightly.
In a separate bowl combine
2 cups/240g flour (all purpose/plain)
To the chocolate mixture (if your pot is large enough and sufficiently cool there is no point making more dishes for yourself by transferring this to a bowl as well)
1/2 cup/100g granulated sugar
1 tsp/5ml vanilla extract
2 eggs (probably large, room temperature, if your chocolate mixture is hot they will cook. Room temperature eggs keep your mixture from being cold when it goes in the oven.)
Stir in 1/3 of flour mixture until smooth then fold in remaining mixture until just mixed (over mixing causes the muffins to be tough because of gluten activation)
(Honestly, if you want to avoid even more dishes, skip mixing the dry ingredients. Instead, stir the baking powder, salt, and 1/2 cup/60g flour into the chocolate mixture then add the rest of the flour. The goal of premixing them is to evenly distribute the baking powder and salt without over mixing most of the flour.)
1/3 cup/70g chocolate chunks (see above)
Distribute between muffin cups and bake for 24 minutes. (The person on video has done the food stylist thing of leaving some of the chunks out and placing them on top. This is not necessary but looks pretty)
Heat over low until just hot
1/2 cup/120ml heavy cream
1/4 cup/45g dark chocolate (chunks, cut bar, whichever)
Stir until smooth. Allow the muffins to cool at least 15 minutes before filling. The method for filling is not displayed but most likely is piped in. At home, without a piping bag, you can use a ziploc bag and cut the corner off (after filling the bag, don't be an idiot, this shit is runny).
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