Place the white chocolate chips in a medium heatproof bowl and set aside. Measure out the butter, heavy cream, strawberry extract, vanilla extract, pink food coloring, and sea salt into small bowls or ramekins so everything is ready to go. I find that having all ingredients measured and ready before you start heating anything makes the process much smoother and prevents scrambling when timing is tight.
In a small saucepan over medium heat, melt the cubed butter, then stir in the heavy cream and sea salt. Heat gently until the mixture just begins to simmer—you'll see small bubbles forming around the edges. This should take about 2-3 minutes. Do not let it boil vigorously; we're just warming the cream to help melt the chocolate efficiently.
Pour the hot butter and cream mixture over the white chocolate chips in the bowl. Let it sit undisturbed for 2 minutes—this resting time is crucial as it allows the residual heat to gently melt the chocolate without seizing it. After 2 minutes, add the strawberry extract, vanilla extract, and pink food coloring, then stir gently and continuously until the mixture is completely smooth and glossy. If you notice any small unmelted bits, microwave the mixture in 15-second intervals, stirring between each burst, until fully combined.
Transfer the ganache to a shallow dish or bowl and refrigerate for 30 to 60 minutes, stirring occasionally. The mixture should firm up enough that you can scoop it with a small spoon or melon baller and shape it into rough balls without it being completely hard. I like to start checking around the 30-minute mark—it shouldn't be rock-solid, just firm enough to hold its shape.
While the ganache chills, combine the sifted powdered sugar and finely crushed freeze-dried strawberries in a shallow bowl, stirring to combine evenly. This mixture will coat your truffles and give them a beautiful appearance with little bursts of strawberry flavor.
Using a small spoon, melon baller, or truffle scoop, portion the chilled ganache from Step 4 into roughly 1-inch balls, rolling each one gently between your palms to smooth it out. Working quickly, roll each ball in the strawberry-powdered sugar mixture from Step 5 until fully coated. Place the coated truffles on a parchment-lined plate or baking sheet.
Refrigerate the finished truffles for at least 30 to 60 minutes before serving—this final chill ensures they set completely and hold their shape when bitten. Store them in an airtight container in the refrigerator.