Put the apples, water, honey, an salt in a lrg saucepan an bring to a boil over med-hi heat. stir in the oatmeal, reduce heat to a simmer, an cook according to directions on oatmeal label.
Meanwhile, put the butter in a small skillet an melt over med heat. Continue cooking until butter turns golden, nutty brown. remove from heat an stir in the pumpkin pie spice. pour 1/4 the butter into the oatmeal an mix to combine; cover an let stand 10 min before serving.
to serve, divide oatmeal in 4 bowls an drizzle some brown butter over each serving