Brown Butter Waffles with No-Churn Blueberry Ice Cream

Ingredients for Brown Butter Waffles with No-Churn Blueberry Ice Cream
(makes approx 8 waffles and about 1-1.5L of ice cream)
For the blueberry ice cream (adapted from spicy ice cream):
2 punnets (250g) fresh or frozen (and thawed) blueberries
Juice of 1/2 lemon
3-4 tbsp sugar, adjusted to taste
2 cups cream (pure/pouring cream (or heavy cream in the US, min 35% fat unthickened))
1 can (395g) sweetened condensed milk