Using late additions of your LME can help. Either turn the heat completely off, or at least way down to avoid scorcing the extract while adding to the wort. Mix the wort well while adding.
And sometimes doing a full volume boil can also help. But this assumes you have a means for cooling the additional volume (e.g. wort chiller).
Primary #1: Umlaut my Kölsch VII #2: Empty
Secondary #1: Empty #2: Empty #3: Cab MerMarqeNac Wine
Kegged: Mugged a Monk Paters
Bottles: Dark Belgian Strong, Black Raspberry Rhubarb wine, RIS, Carmel Apple Cider, Big 50 Barleywine, Framboise Lambic, Barolo Wine, Berry Rhubarb Wine, Black Currant wine
On Deck: BGSA