Hull and halve the strawberries lengthwise. Place in a bowl, add the granulated sugar, and toss gently to coat all cut surfaces. Set aside at room temperature for 5 minutes until a small pool of strawberry juice collects at the bottom of the bowl.
While the strawberries macerate, stir together Mexican crema, sweetened condensed milk, vanilla extract, and a pinch of fine salt in a small bowl until completely smooth with no visible streaks.
Taste the sauce and adjust sweetness or tanginess to your preference.
Pour the cream sauce over the macerating strawberries and their collected juice. Fold gently from the bottom of the bowl until every strawberry is coated and the juice has tinted the sauce pale pink.
Spoon into individual serving bowls or glasses. Add optional garnishes right before serving. Serve immediately or refrigerate covered for up to 2 hours before serving.