| | FUDGY BROWNIES |
| 1 | c | (2 sticks) unsalted butter; cut into tablespoons |
| 1 | c | Packed dark brown sugar |
| 2/3 | c | Granulated sugar |
| 18 | oz | (about 3 cups) semisweet chocolate chips |
| 2 | oz | Unsweetened chocolate; coarsely chopped |
| 5 | lg | Eggs; at room temperature |
| 1 | tb | Vanilla extract |
| 1 1/2 | c | All-purpose flour |
| 2 | ts | Instant espresso powder |
| 1/4 | ts | Salt |
| 1 | c | Walnut halves |
| | BITTERSWEET CHOCOLATE GLAZE (OPTIONAL): |
| 2/3 | c | Heavy (whipping) cream |
| 6 | oz | Bittersweet chocolate; finely chopped |
| | DECORATION (OPTIONAL |
| 1 | oz | Milk chocolate; coarsely chopped |
| 1 | oz | White chocolate; coarsely chopped |
