Pulse strawberries in the food processor to make 1 cup of strawberry puree.

Place strawberry puree, sugar, and butter in a small nonstick pan over medium low heat and simmer 15 to 20 minutes or until reduced to 1/2 cup. Mix reduced liquid with flour and salt in a small bowl. Chill truffle filling for 1 hour in the fridge or until cold.

Carefully roll chilled strawberry filling into 12 round truffles and place on a cookie sheet lined with wax paper. Chill in the fridge for 30 minutes or until cold.

Melt semisweet chocolate chips in a shallow bowl on High 1 minute, stirring after 30 seconds; stir until chips are melted and mixture is smooth, microwaving an additional 10 seconds as needed. Mix in 1 tablespoon oil. Using 2 forks, dip strawberry centers into melted chocolate and cover evenly. Place on waxed paper and smooth tops with the back of a spoon, if needed. Cool in the fridge until chocolate is set, about an hour.

Melt white chocolate chips in a shallow bowl on High 1 minute, stirring after 30 seconds; stir until chips are melted and mixture is smooth Mix in remaining 1/2 tablespoon oil and pink gel food coloring and place chocolate in a pastry bag with a number 4 tip. Drizzle chocolate over truffles.