Combine 1 1/2 cups of the berries, sugar, lemon juice, and salt in a small saucepan. Bring to a boil over medium heat.
Turn the unit down to medium-low heat. Simmer for 8-10 minutes, or until thickened to desired consistency. Remove from the heat and stir in the remaining berries, smashing slightly.
You can serve it warm, but we like it chilled or at room temperature.
Notes
Adding a few berries after you cook the sauce adds a great fresh flavor and creates chunks of fruit. But you can cook all of the berries if you prefer.
We like our compote fairly sweet, but you can reduce the sugar to 1/4 cup or less if you like it more tart.
Leftover compote can be stored in the refrigerator in an airtight container for at least a week.
For a smoother sauce, you can press the raspberries through a fine mesh sieve to remove some or all of the seeds, or use an immersion blender to remove some of the chunks of fruit.