A cooking burner, comprising: a spreader defining: a first side wall defining an outer profile having first and second extension sections (18, 20) opposed about a first axis, each having a semi-circular end segment (24, 26) with first and second parallel straight segments (28a, 28b, 30a, 30b) extending parallel with the first axis from opposite ends of the semi-circular segment (24, 26), the first side wall further defining first and second arced sections (32a, 32b), each extending outwardly along a second axis perpendicular to the first axis from and between the first parallel straight segments (28a, 28b) and second parallel straight segments (30a, 30b) of the first and second extension sections (24, 26), respectively; a second side wall defining a circular profile disposed inwardly of and concentric with the first and second arced sections (32a, 32b); and a plurality of fuel outlets extending through both the first side wall and the second side wall; a circular inner cap assembled with an upper portion of the circular profile; an annular outer cap assembled with respective upper portions of the first and second arced sections (32a, 32b); and first and second extension caps (46, 48) assembled with respective upper portions of the first and second extension sections (18, 20). a spreader defining: a first side wall defining an outer profile having first and second extension sections (18, 20) opposed about a first axis, each having a semi-circular end segment (24, 26) with first and second parallel straight segments (28a, 28b, 30a, 30b) extending parallel with the first axis from opposite ends of the semi-circular segment (24, 26), the first side wall further defining first and second arced sections (32a, 32b), each extending outwardly along a second axis perpendicular to the first axis from and between the first parallel straight segments (28a, 28b) and second parallel straight segments (30a, 30b) of the first and second extension sections (24, 26), respectively; a second side wall defining a circular profile disposed inwardly of and concentric with the first and second arced sections (32a, 32b); and a plurality of fuel outlets extending through both the first side wall and the second side wall; a first side wall defining an outer profile having first and second extension sections (18, 20) opposed about a first axis, each having a semi-circular end segment (24, 26) with first and second parallel straight segments (28a, 28b, 30a, 30b) extending parallel with the first axis from opposite ends of the semi-circular segment (24, 26), the first side wall further defining first and second arced sections (32a, 32b), each extending outwardly along a second axis perpendicular to the first axis from and between the first parallel straight segments (28a, 28b) and second parallel straight segments (30a, 30b) of the first and second extension sections (24, 26), respectively; a second side wall defining a circular profile disposed inwardly of and concentric with the first and second arced sections (32a, 32b); and a plurality of fuel outlets extending through both the first side wall and the second side wall; a circular inner cap assembled with an upper portion of the circular profile; an annular outer cap assembled with respective upper portions of the first and second arced sections (32a, 32b); and first and second extension caps (46, 48) assembled with respective upper portions of the first and second extension sections (18, 20).