Add room temperature strawberry mixture (if removed) and the sweetened condesned milk into a blender or food processor. Beat on high for 2 minutes to whip lots of air into the mixture.
Place 2 cups of heavy cream into a separate large bowl. Whip on high into stiff peaks using a hand mixer or stand mixer. This should take roughly 3-4 minutes.
Add a large dollop of whipped cream into the strawberry mixture. Fold in gently, using a spatula to carefully and gently stir so as not to disturb the aeration. Once mostly mixed through, add another large dollop and fold in. Repeat this process until roughly half the cream is mixed in.
Take the strawberry mixture and scrape into the whipped cream bowl. Gently fold together until the color is even, though a few streaks is ok.
Pour into a loaf pan or baking dish for the freezer. Press a piece of parchment paper onto the top of the mixture to prevent ice from forming. Freeze for 12+ hours.
Remove from the freezer and scoop to serve. Pro-tip: if you have a metal ice cream scoop, heat it up slightly by dunking it in hot water to help scoop more easily. Serve in a cone or bowl, and garnish with brownie brittle or wafers if desired.