01 - Line two large baking sheets with parchment paper or silicone mats
02 - In a heavy-bottomed saucepan over medium heat, combine granulated sugar, brown sugar, heavy cream, and butter. Stir constantly until butter melts and mixture comes to a boil
03 - Attach a candy thermometer to the pan. Continue stirring and cook until the mixture reaches 238°F (soft ball stage), approximately 8-10 minutes
04 - Remove the pan from heat. Add vanilla extract and salt. Stir in pecan halves
05 - Beat the mixture vigorously with a wooden spoon for 2-3 minutes, until it thickens and becomes creamy but still pourable
06 - Quickly drop heaping tablespoons of the praline mixture onto the prepared baking sheets, spacing them apart
07 - Allow the pralines to cool and set completely at room temperature, approximately 30 minutes
08 - Once hardened, store in an airtight container at room temperature for up to 1 week