In a large bowl, add the condensed milk, lemon juice (about ¼ cup [60 ml]), lemon zest (about 1 Tbsp), chili crisp, and vanilla. Mix to combine.
Put the cream in a medium bowl. Using an electric hand mixer, beat the cream until stiff peaks form, 3 to 4 minutes. Alternatively, use a food processor to make whipped cream. Pour the cold cream into the bowl of the f