1 (14-ounce) can sweetened condensed milk
1 1/2 cups heavy whipping cream
1 1/2 cups peach nectar
1/4 teaspoon almond extract
Small pinch kosher salt
4 ripe peaches, pitted and quartered
1/4 cup light brown sugar
1 teaspoon vanilla extract
1/4 teaspoon allspice
10 shortbread cookies, crumbled (recommended: Lorna Doone)